Page 259 - 2006 HARLEY FLSTCI SERVICE MANUAL

5.13
Figure 5-22. Fuel Pump Connector [86], (typical)

Figure 5-23. System Relay

FUEL SYSTEM ELECTRICAL TEST
11561 7778

flow is bypassed into the fuel tank through the pressure regu-
ulator is where the system pressure is controlled. Excess fuel
The fuel pump delivers fuel to the injectors. The pressure reg-
lator. When the engine is stopped, the pump can be turned on
fuel tank. See Figure 5-22. Improper fuel system pressure
nector [86A]. The fuel pump connector is located on top of the
by applying battery voltage and ground to the fuel pump con-
relay to complete the circuit to the in-tank fuel pump. It will
remain on as long as the engine is cranking or running, and
With the ignition key ON and the engine stop switch at RUN,
the electronic control module (ECM) will energize the system
system relay within 2 seconds after ignition is ON or engine
If there are no reference pulses, the ECM will de-energize the
the ECM is receiving ignition reference pulses from the CKP .
has stalled, or immediately after the ignition is shut OFF .
may contribute to one or all of the following symptoms.
Engine cranks, but won’t run. Engine cuts out (may feel like ignition problems). Hesitation, loss of power and poor fuel economy. NOTE After turning ignition OFF , you must wait 10 seconds before turning the ignition back ON to get the fuel pump to reprime. This time out period is necessary for the fuel pump and IAC to The reference numbers below correlate with the circled num- bers on the Test 5.13 flow charts. Turns on fuel pump if wiring is OK. If pump runs, problem is in basic fuel delivery. Use HARNESS CONNECTOR TEST KIT (Part No. HD- 41404), brown pin pro

GENERAL DIAGNOSTICS Diagnostic Notes

HOME ● ● ● reset. 1. 2. 3. 4. 5-40